Hazard Warning Switch Inspection
WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
Reference: HVAC Control Module Removal and Installation
Check continuity between terminals at each switch position. If check result is not as specified, replace auto A/C panel.
NOTE:
Set tester to diode range when checking continuity between terminals 2 and 4.